538943 has 2 divisors, whose sum is σ = 538944. Its totient is φ = 538942.

The previous prime is 538939. The next prime is 538987. The reversal of 538943 is 349835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538943 - 2² = 538939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269471 + 269472.

It is an arithmetic number, because the mean of its divisors is an integer number (269472).

2⁵³⁸⁹⁴³ is an apocalyptic number.

538943 is a deficient number, since it is larger than the sum of its proper divisors (1).

538943 is an equidigital number, since it uses as much as digits as its factorization.

538943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 538943 is about 734.1273731445. The cubic root of 538943 is about 81.3793615815.

The spelling of 538943 in words is "five hundred thirty-eight thousand, nine hundred forty-three".